The Brazilian company Embraer Commercial Aviation recently ‘rolled out’ the first of its E175s to feature a range of aerodynamic improvements that are designed to reduce fuel burn (compared to the previous production aircraft).

The modifications include the introduction of a new wing tip, systems optimisation, and streamlining of aerodynamic surfaces. The first customer delivery of the E175 with the complete package of modifications is expected in the coming weeks.

The modified E175 aircraft recorded impressive results during several months of performance trials. Fuel consumption on a typical flight is 6.4% lower than the original E175, exceeding earlier-reported savings of up to 5%.

With these improvements, the E175 has become a best-seller in its category. In 2013, four airlines in the USA placed 177 firm orders, 60 ‘re-confirmable’ orders and 277 options for the E175.

Besides reduced fuel burn, other improvements to the current generation of E-Jets include extended maintenance intervals, increased productivity and lower maintenance costs.

Embraer says these latest improvements ensure that the airplane will remain competitive until the second generation of the jet, the E175-E2, goes into operation in 2020.